<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <link rel="stylesheet" href="style.css">
    <title>柱状加载动画</title>
</head>
<body>
    <div class="main">
        <span style="--s:1"></span>
        <span style="--s:2"></span>
        <span style="--s:3"></span>
        <span style="--s:4"></span>
        <span style="--s:5"></span>
        <p>LOADING...</p>
    </div>
</body>
</html>